Coal feeder and separator and grader



Dec. 6, 1927. 1,651,620

J. T. NORMAN COAL FEEDER AND SEPARATOR AND GRADER Original Filed June 5,1925 I NVENTOR (fOS-fib f/l err/zan- TTORNEY 7 Patented Dec. 6, 192 r ye,

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Original application filed .nmeia; 1925,$eria1iNo.34,707; -niviaa am I"1 1936. Seria11q'o. 131, 960. I;

fai -appe se filed August 27,

. l'ph int ntion primarily has forl itseobject strapiconnection li,serves'toimpartrecipro into sizablelnmps,- Jasmuch waste isoncetoeprovidee a; simple and eflicient. apparatus for feeding coal to1:3' breaker or similar .device {and for :1 separating and grading ,f itwhile: so feeding it. 1

iln breaking-coal it is desired to break it sioned bywrough treatmentresulting in ipulr verization; It isytherefore the purposeaof my presentinvention to provide means? for slowly feeding the coal to thebreaker-in successive steps and for .efficiently grading it to thedesired size and separating the-slate or other undesirable content.Thereforein its more detailed naturethe invention seeks to provide ahopper;- torreceive' the coal, a tablexonto which the coal is depositedand which is composed ofrotate able rollers, Lsa'id table beingreciprocable,

and said hopper stationary and provided with a depending pusher skirtextending down into proximity with the rollers for pushing the coal massalong each time the table moves rearwardly.

With the above andother objects in view that will hereinafter appear,the invention still further resides in the novel details ofconstruction, combination and arrangement of parts, all of which will befirst fully described, then be particularly pointed out in the appendedclaims, reference being hadito the accompanying drawings, in whichzFigure 1' is a vertical longitudinal section of the invention. I

Figure 2 is a plan view.

Figure 3 is a vertical cross sect-ion'take on the line 33 of Figure 1. W

In the drawings, 1 indicates a receiving hopper having a flaredreceiving throatway and a depending abutment skirt 2 and forwardlyextended neck portion 3.

A suitable supporting table or guideway 4 may be provided to serve as asupporting medium for the reciprocable grading and screening table 5provided with side wings 6 and a receiving floor composed of a pluralityof longitudinally positioned spaced rollers 7 mounted in suitablebearings at the ends of the table and to which rotation (in likedirection to all rollers) is transmitted through-the connections 8 fromthe pulley connections 9 to which said motion is initially imparted. Asuitable pitman 1O is catory-niotion to the: said table 5. J

P Rotation .is'imparted to" the fixed eccentric shaft through I sprocketand: chain; connec? tionaiwith-lthe.pulley shaft andthe chain is.sufiicientlyfiloose {or slack to permit "the" liinitedreciprocablermovement of the power transmitting mechanisms and 9.1The same: can besaid of the belt which drives the lpnilley9; v A? -jT e' neck 'portion 3witlrwhich the hopper is provlded may extendsubstantially to tlie'fore Iend of the reciproca'ble table 5 I and itwill be readily understood thatas the coal is fed into the hopp'er' it will 'deposi t down upon thesaidtable "and'z as the forward stroke of reciprocation takes place" thesaid .coal will be fed-along thattablegand off its fore ord-ischargeend. The hopper-is adapted to be stationarily supported, andthe sep:

arator table, including the roller rotation mentskirt 2 and upon thesucceeding rearward movement of the said table that skirt Wlll act toforce the coal forwardly, thus effecting a step-by-step positive feed ofthe coal off the fore end of the said table. By reason of the spacedrelation of the rollers 7 of the table and the fact that they rotate inlike direction the function of that table will be to tend to turnedgewise such fiat pieces of coal as are small enough tofall through thespaces between the rollers, thus serving both to grade the coal to thedesired like. Also, by rotating all of the rollers in like direction itis impossible for any ofthe size and to screen the same of slate and thecoal lumps to lodge between the same and clog the mechanism.

In practical use the device is preferably positioned to discharge at alow point upon, the breaking mechanismin the manner indicated in Figure1 of the drawings. This overcomes waste by pulverization due to fall'-ing of the coal any considerable distance fromxofl" the feeder;

This application is a division of my application for Letters Patentfiled June 3, 1925, Serial No. 34,707.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought that the novel details ofconstruction, the manner of operation and means for separating coal andslate and delivering the coal onto a breaker, said means comprising alongitudinally reciprocating table for receiving the coal and deliveringit to the separator tableby gravity,.a transverse fixed abutment abovethe separator table for holding the coal against movement in onedirection While the table is being at ciprocated, means for effectingreciprocation of the table, said table including rotating separator.rollers between which the slate passes, said rollers being located withtheir axes lying in the direction of reciprocation, substantially asshown and described.

2. Incapparatusfof the class described, means for separating coal andslate and delivering the coal onto a breaker, said means comprising alongitudinally reciprocating v separator table, a hopper located abovethe table for receiving the coal and delivering it to the separatortable by gravity, a transverse fixed abutment depending verticall fromthe hopper into close proximity wit the separator table and adapted forholding the coal against movement i'none direction a While the table isbeing reciprocated, a neck portion extending forwardly from the hopperover and substantially parallel the table to provlde a restrictedpassageway," and means for effecting reciprocation of the table for thepurposes described. separator table, a hopper located above the 3a Inapparatus of the class described, means for separating coal and slateand delivering the coal onto a breaker, said means comprising alongitudinally reciprocating separator table, a hopper located above thetable forreceiving the coal and delivering it to the separator table bygravity, a transverse fixed abutment depending vertically from thehopper intoclose proximity'with the separator table and adapted forholding the coal against movement in one direction while the table isbeing reciprocated, said separator table including spaced longitudinalseparator elements, and said depending abutment being shaped at itsbottom to snugly surround the upper portions'of the separator elementsand extend a distance r therebetween, and means for efiectingreciprocation of the tablefor the purposes described. 7

JOSEPH T. NORMANL

